What’s the difference between @Controller, @Component, @Repository & @Service annotations in Spring?
Know to difference between Spring stereo type annotations @Controller, @Component, @Repository & @Service.
Possible Reasons for @Autowired Field Null
Possible reason and fix for spring @Autowiring not working.
Enable Authentication In MongoDB
Learn about security configurations provided by MongoDB like Authentication, TLS etc.
Java Serialize Json in Order
Serialize JSON in ordered properties in Java using Jackson library.
Angular ng build causes out of memory while building
Fixing out or memory or low heap issue of angular build.
Java JPA @Enity define with columnDefinition
Define more meaning full tables with JPA @Entity with columnDefinition field of @Column annotation.
Using H2 DB with Spring Boot JPA Example
Spring boot example to using H2 DB with JPA. In this example I create one rest service with H2 DB.
CORS and It’Configurations in Spring Boot Rest Service
CORS configuration example in spring boot using spring security CorsConfigurationSource, UrlBasedCorsConfigurationSource and WebSecurityCustomizer .
Fixing Java HTTPS connection behind Internet proxy causes SSLHandshakeException
Resolving SSLHandshakeException in Java using KSE(KeyStireExplorere tool)
AWS Lambda Function URL, Create Web Apis without API Gateway
Nowadays microservices pattern is industry standard and there are many ways to create microservices. Container platforms like K8S, AWS Farget, and many others are used to deploy microservices, apart from these Functions as service is another way to create microservices using API gateways. On AWS one can develop APIs using AWS Lambda and API gateway […]